|
Ackermannviridae
|
dsDNA
|
−
|
Icosahedral tailed
|
1 linear
|
155
|
Bacteria
|
Adenoviridae
|
dsDNA
|
−
|
Isometric
|
1 linear
|
28–45
|
Vertebrates
|
Alloherpesviridae
|
dsDNA
|
+
|
Isometric
|
1 linear
|
134–248
|
Vertebrates
|
Alphaflexiviridae
|
ssRNA
|
−
|
Filamentous
|
1 + segment
|
7–9
|
Plants
|
Alphasatellitidae
|
ssDNA
|
−
|
N/A
|
1 linear
|
1.3–1.4
|
Plants
|
Alphatetraviridae
|
ssRNA
|
−
|
Isometric
|
1 linear
|
6.5
|
Invertebrates
|
Alvernaviridae
|
ssRNA
|
−
|
Isometric
|
1 linear
|
4.4
|
Dinoflagellates
|
Amalgaviridae
|
dsRNA
|
−
|
Isometric
|
1 linear
|
3.5
|
Plants
|
Ampullaviridae
|
dsDNA
|
+
|
Bottle‐shaped
|
1 linear
|
23.8
|
Archaea
|
Anelloviridae
|
ssDNA
|
−
|
Isometric
|
1 linear
|
3–4
|
Vertebrates
|
Arenaviridae
|
NssRNA
|
+
|
Spherical
|
2 ± segments
|
11
|
Vertebrates
|
Arteriviridae
|
ssRNA
|
+
|
Isometric
|
1 + segment
|
13–16
|
Vertebrates
|
Artoviridae
|
ssRNA
|
+
|
Spherical
|
1 − linear
|
12.3
|
Invertebrates and vertebrates
|
Ascoviridae
|
dsDNA
|
+
|
Reniform
|
1 linear
|
100–180
|
Invertebrates
|
Asfarviridae
|
dsDNA
|
+
|
Spherical
|
1 circular
|
170–190
|
Vertebrates
|
Aspiviridae
|
ssRNA
|
−
|
Filamentous
|
3–4 – linear
|
11.3–12.5
|
Plants
|
Astroviridae
|
ssRNA
|
−
|
Isometric
|
1 + segment
|
7–8
|
Vertebrates
|
Avsunviroidae
|
ssRNA
|
N/A
|
N/A
|
1 + circular
|
0.25
|
Plant viroids
|
Bacilladnaviridae
|
ssDNA
|
−
|
Isometric
|
1 circular
|
5–6
|
Diatoms
|
Baculoviridae
|
dsDNA
|
+
|
Bacilliform
|
1 circular supercoiled
|
80–180
|
Invertebrates
|
Barnaviridae
|
ssRNA
|
−
|
Bacilliform
|
1 + segment
|
4
|
Fungi
|
Belpaoviridae
|
ssRNA (RT)
|
N/A
|
N/A
|
1 linear
|
?
|
Invertebrates
|
Benyviridae
|
ssRNA
|
−
|
Rod‐shaped
|
4/5 + segments
|
14–16
|
Plants
|
Betaflexiviridae
|
ssRNA
|
−
|
Filamentous
|
1 linear
|
6.5–9
|
Plants, fungi
|
Bicaudaviridae
|
dsDNA
|
+
|
Lemon‐shaped
|
1 circular
|
62
|
Archaea
|
Bidnaviridae
|